Trying to find out info about my great great grandfather Owen McMahon who was born in 1825 in Carrickmacross, County Monaghan. At least that's where I believe he was born. He supposedly served in the military and emigrated to the US in about 1848. He was naturalized in Pittsburgh , PA. In 1851. He married a Roseann Owens and they had 3 children. Owen died in 1856.
Jim:
Welcome to Ireland Reaching Out!
Unfortunately, RC baptismal records for Carrickmacross start in 1858. I did a quick check of the subscription site Roots Ireland and the earliest Owen McMahon baptismal record for Co. Monaghan was in 1836 too late for your interests.
The 1861 Griffiths Valuation head of household listing for Magheross civil parish (which includes Carrickmacross) shows at least 30 McMahon households so the surname was very common in the parish. https://www.failteromhat.com/griffiths/monaghan/magheross.htm
Similarly going back to the Tithe listings from 1823, there were 22 McMahon records in Magheross civil parish http://titheapplotmentbooks.nationalarchives.ie/search/tab/results.jsp?surname=mcmahon&firstname=&county=Monaghan&parish=magheross&townland=&search=Search
What was the name of his eldest son?
Roger McDonnell
Hi Roger, Thanks for your input. Owen had three children, all born in the US. James was born in 1852, Francis Joseph (Frank) born in 1853, my great grandfather, and Mary Elizabeth in 1856. There was an Arthur McMahon, possibly a brother, but more likely a cousin to Owen, who was born in 1834 in Carrickmacross.
Don't know if this info can be of any help. There seems to be a lot of McMahons in that area which I realize complicates research, especially due to lack of or difficulty in finding documentation.
Jim:
There is an Arthur McMahon in Drummond Otra townland in the 1861 Griffiths. I could not tell if the Arthur from 1834 came to America or stayed in Ireland.
Roger